5 Written questions
5 Matching questions
- Sublittoral Zone
- a A layer in a body of water in which water temperature drops with increased depth faster than it does in other layers.
- b The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments.
- c The raising of aquatic plants and animals for human use or consumption.
- d The shallow benthic zone that most organisms live in; located on the continental shelves and is populated by organisms such as sea stars, brittle stars, and sea lilies.
- e Organisms that live at the bottom of oceans or bodies of fresh water.
5 Multiple choice questions
- A floating layer of sea ice that completely covers an area of the ocean surface.
- The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases.
- Potato-shaped lumps of minerals that are found on the abyssal floor of the ocean.
- The region of an ocean or body of fresh water above the benthic zone.
- Has no sunlight because it begins at a depth of 4,000 meters and extends to a depth of 6,000 meters.
organisms that live there: sponges and worms
5 True/False questions
Sea Salts → Dissolved solids that make up about 3.5% of the mass of ocean water. These dissolved solids give the ocean its salty taste.
Oceanic Zone → The region of an ocean or body of fresh water above the benthic zone.
Benthic Zone → The region of an ocean or body of fresh water above the benthic zone.
Nekton → All organisms that swim actively in open water, independent of currents
Desalination → A process of removing salt from ocean water.